var invalidaddress=new Array()
invalidaddress[0]="outgun"
invalidaddress[1]="outblaze"
invalidaddress[2]="fastermail"
invalidaddress[3]="keromail"
invalidaddress[4]="druknet"
invalidaddress[4]="freemail"
invalidaddress[5]="doramail"
invalidaddress[6]="didamail"
invalidaddress[7]="aemail4u"
invalidaddress[8]="velocall"
invalidaddress[9]="austrosearch"
invalidaddress[10]="asiamail"
invalidaddress[11]="myway"

//extend or shorten this list if neccessary

var testresults
function checkemail(){
var invalidcheck=0;
var str=document.validation.emailcheck.value
var filter=/^(\w+(?:\.\w+)*)@((?:\w+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i
if (filter.test(str)){
var tempstring=str.split("@")
tempstring=tempstring[1].split(".")
for (i=0;i<invalidaddress.length;i++){
if (tempstring[0]==invalidaddress[i])
invalidcheck=1
}
if (invalidcheck!=1)
testresults=true
else{
alert("Oops! That free email address is often used to spam. Please enter another!")
testresults=false
}
}
else{
alert("Please input a valid email address!")
testresults=false
}
return (testresults)
}